Shuttle check



`'une 24, 1930.

w.` E. LUNDGREN SHUTTLE CHECK' Filed Jan. 1S., 1929 NM Sm Patented .lune24? 1930 Mean? rtf-ic WILLIAMS E. LUNDGB-EN, O WORCESTER; MASSACHUSETTS,ASSIGIQOR T0 CROME'TON a KNOWLES kLOOM W'ORKS, GIE' MASSACHUSETTS iVGRCESTER, MASSACHUSETTS, .A COREORATION OF snorricnonncx Applicationlefl January 15, 1929. Serial No. 332,705.

This linvention relates to shuttle checks for looms and it isthe-general object of the invention to provide a simple check whereinthe checking action isk caused by the shuttle itself. i

` In weft replenishing looms it is important to have the shuttlesproperly placed with respect to the magazines and weft detectors sothatthese mechanisms can always cooperate properly with the bobbin. Itisan important object of my present invention to provide a shuttle check`which is movable with` respect to a fixed pivot and divided into twoarms,l one the shuttle engaging arm and the other the binder or pressureexerting arm, these arms being variable as to length to effecta range ofpressureswhich may be necessary when the speed ofy the loom is increasedor decreased.

It is a further object of my present invention to provide a shuttlecheck havingV 'an arm to engage` the` rounded portion 0f the shuttleandtovprovide said check with a mounting so that; said arm maybe given agreater or lesser movementv depending upon the amount of -the roundedportion ofthe shuttle which it engages.

With these and other objects in Vview which will appear as thedescription pro- 'ceeds7 my 'invention resides in the combination andarrangement of parts hereinafter described and'set forth inthe claims.

' In the accompanying drawings, wherein a convenient embodiment ofmyinvention is Vset forth, l

Fig. 1 is a top plan View of a lay end havf ing my invention appliedthereto,

Fig. 2 isa front elevation of a portion of a structure shown in Fig. 1taken in the direction of arrow 2, of the latter ligure,` and Fig. 3 isan'enlarged vertical section on line 33 of Fig. 1; Y p.

Referring to Figlpl have indicated the lay 10 having abox back 11 andabinder 12 supported by a stud lupstanding from boxV at one end.Thestructure thus far described is of the usualV form.

ncarrying my invention intoeifect I' provide the boxvplate 14 with `aforwardly extending horn 2O into which is threaded as at`21 the lowerend of a stud 22. The latter extends through a carrier 23, upward mo,-tion of which is restrained by head 2st `of the stud. -The carrier isconned between the head and the horn 20 but is free to rotate about lthestud., f Y

The shuttle check includes in its construction a single strip ofvresilient metal such as tempered steel indicated generally at 30 havingthe right vhand end thereof as viewed in Fig. 1 curved ,as Yat 31 andprovided with ,leather facing 32. The facing is designed to. engage therounded edge C of the shuttle S; .The shuttle check is provided with arear substantially straight limb 33 the left hand end of which asrviewed in Fig. 1 is bent'towardthe binder to engage the latter at arounded portion or nose` 34. From the nose the strip of material iscurved for-4 The carrier 23 is provided with a recess 401 which receivesthe limb 33 while the `forward lportion of said carrier is provided-witha second recess 41 in which lies'lthe forward limb;v i i As shownin Fig.2 the forward portion of the check is provided with'a s101542 throughwhich extends va pair of screws. 13. V'lhese screws extend into vtheVcarrier and' clamp lthe forward portion of the checktightly to thecarrier. The rear limb 33 is free to. move in the slot 40, not beingclamped directly vto `the carrier but being held in close relation withthe latter partly by the bolt `37. g

The stud 22 is normally in fixed Vposition with respect to the box plateand therefore the laylof the loomis provided with a single Y Cil Lif)

With respect to the shuttle when the latter is properly boxed. As theshuttle enters the box the curved portion C will engage the leatherfacing 32 and rock the check in a clock-Wise direction as viewed-in Fig.l around the stud 22, thus pressing the rounded nose 3st against thebinder 12. The effect of this action is to increase the pressure of thebinder against the shuttle and thereby check movement of the latter inthe box to avoid rebounding.

It it is desired to vary the checking effect on the shuttle the screws43 may be loosened and the cheek moved either to the right-or to theleft, as desired, with respect to the carrier 23, the screivs el?) beingtightened When the check is in proper position. By varying the positionof the nut-s 39 With respect to the screiv 37 it will be possible tochange the relation betwen the substantially parallel limbs 33 and 35 toeffect a corresponding change between the shuttle and binder engagingarms. In this Way I am able to secure Va. variety of adjustments andalso to vary the time of application of the maximum torce exerted by thecheck when compared With the travel of theshuttle into the box towardthe picker. y

lVhen the shuttle cheek is moved to the left of the position shown inFig. l the leather facing 32 will be engaged at an earlier time in theflight of the shuttle so that the nose 3ft Will be moved against thebinder earlier in the pick. rIhis movement of the check will ofcourseapply the pressure exert-ed by the nose 34 at a point more distantfrom the pivot ot the binder so as to increase the leverage of thelatter. If in the new position assumed the' leverage 'should be foundcorrect but the time ot action too late the screw 37 may be changed soas to move the leather rfaced end of the check rearwardly,` thisadjustment being permissible due to the tact that the material of whichthe binder is formed is resilient and that the sereiv 37 acts to torcethe Aliinb 33 vaway from limb 35.

From the foregoing it will be seen that I have provided a shuttle cheekformed essentially of a. single strip of resilient material which isheld to a Carrier movable around an axis preferably fixed though notnecessarily so with respect to the box. It Will further be seen that thecheek may be moved either to the right or to the left With regard to thecarrier by manipulation of the screws 43. It will also be seen that therelation ot the shuttle engaging arm with respect to the binder engagingnose may be varied by means of the serev 37. o

Having thus described my invention it Will be seen that changes andmodifications may be made therein by those skilled in the art Withoutdeparting from the spirit and scope of the invention and I do not Wishto be limited to the details herein disclosed, but what I claim is:

l. In a shuttle cheek for a loom having a lay with a binder to engage ashuttle, means defining a pivot, an inherently resilient shuttle checkextending on opposite sides of the pivot and having one arm to engagethe rounded end of the shuttle and the other arm to engage the binder,means to hold the shuttle check,y said means having connection with theaforesaid pivot, and a device to vary the amount ot the shuttle checkwhich extends to one side of the pivot. l

2. In a shin-tlev check for a loom having a lay with a binder to engagea shuttle with a rounded end, means defining a pivot., a shuttle checkformed ot inherently resilient material and having an arm on one side ofthe pivot to engage the shuttle and another arm' on the other side ofthe pivot to engage the binder, a 'carrier' for said cheek movable aboutand supported by the pivot and secured to the cheek, and means to varythe amount of the shuttle engaging arm which extends to one side of thepivot. Y

In a shuttle cheek for a loom having a. lay with a binder to engage ashuttle means defining a pivot, a shuttle' cheek formed ot inherentlyresilient material having a shuttle engaging arm extending to one sideof the pivot and a. binder engaging arm extending to the other sideofthe pivot, a carrier supported by and movable angularly by theaforesaidpivot, and means to hold the shuttle cheek to the carrier inany one et a ipjlurality of positions tovary the length of ashuttleengagiug arm which extends to one side of the pivot. Y f

4l. In a shuttle check for a'loom hai'fin'g a lay with a binder toengage a shuttle7 means defining a pivot, a shuttle cheek formed o'linherently resilient material and having a shuttle engaging armextending to-one side of the pivot and a binder engaging arm extendingto the other side of thep'ivot, a carrier supported by and singularlymovable with respect to the pivot. said shuttle check having a slottherein, and a screw extending through the slot and into the carrier tohold said shuttle check in anyone of a plurality of positions ivithrespect to the pivot to vary the length of the v'shuttle engaging armWhich extends to oneside'ot` the pivot. I v I i 5. a shuttle' check fora loom having a lay With a binder to engage a shuttle, means defining apivot, a shuttle check formed of inherently resilient material andhaving a shuttle engaging arm on one side of the ,1 pivot, saidresilient material being bent back on itself to provide tivosubstantially parallel limbs defining a binder' engaging arm` a carrieroperatively related to. both the limbs and secured to one of them, saidcarrier being supported by and movable angucarrier operatively relatedto both the limbs and secured to one of them1 said carrier beingsupported by and movable angularly with respect to the pivot, saidcarrier being connected to one limb only of the binderV engaging arm.

7. In a shuttle check for a loom having a lay with a binder to engage ashuttle, means defining a pivot, a shuttle check formed of inherentlyresilient material and having Va shuttle engaging arm on one side of thepivot and a binder engaging arm bent back on itself to provide twosubstantially parallel limbs on the other side of the pivot, a carrierVsupported by and angularly movable with respect to the pivot, saidshuttle check having a slot therein, and a screw extending through theslot and into the carrier to hold said shuttle check in any one of aplurality of positions with respect to the pivot to vary the length ofthe binder engaging arm which.

extends to one side of the pivot, said carrier being secured to theforward limb 0f the binder engaging arm and having guiding relation withrespect to the rear limb.

8. In a shuttle check for a loom having a lay with a binder to engage ashuttle, means defining a pivot, a shuttle check formed of a length ofresilient material bent on itself, said material having a shuttleengagingarm located to one side of the pivot and `said material having aportion thereof bent back on itself to define two substantially parallellimbs which define a resilient binder vengaging arm on the `other sideof the pivot, a carrier located between the limbs and supported by andmovable angularly with respect to the pivot, and means to hold one ofthe limbs to the carrier. 4

9. In a shuttle cheek for a loom having a lay with a binder to engage ashuttle, means defining a pivot, a shuttle cheek formed of a length ofresilient material bent on itself, said material having a shuttleengaging arm located to one side of the pivot and said material having aportion thereof bent back on itself to define two substantially parallellimbs which define a resilient binder engaging arm on the other side ofthe pivot, a carrier located between the limbs and supported by andmovable angularlyv with respect to the pivot, means to hold one of thelimbs to the carrier, and means interposed between the limbs to draw thelatter together at a point removed from the pivot.

10. Ina shuttlecheck for a loom having a llay with a binder to :engage ashuttle, means defining a pivot, a shuttle check having a pair ofsubstantially parallel arms which are formedof resilient-material andextend on kboth sidesof the pivot,' said limbs being connectedtogetheron one side of the pivot to define a binder engagingfarm, acarrier for the limbs pivotally supported by the aforesaid pivot, and' ashuttle engaging arm formed as an extension from one ofthe limbs. Y Y jf 11. In a shuttle cheek for a loom having a lay with a binder to engagea shuttle, means defining a pivot, a shuttle check having a pair ofsubstantially parallel arms which are formed of resilient material andextend on both sides of the pivot, said limbs being connected togetheron one side of the pivot to define a binder engagingarm, a carrier forthe limbs pivotally supported by the aforesaid pivot, a shuttle engagingarm formed as an extension from one of the limbs, and means connectingthe limbs on that side of the pivot adjacent the shuttle engaging arm tovary thedistanee between said limbs.

l2. In a shuttle cheek for a loom having a lay with a binder to engage ashuttle, means defining a pivot, a shuttle check formed 'of a strip ofinherently resilient material, said cheek having a shuttle engaging armon one sideof the oivot and having two substan-` tially parallel limbswhich extend on both sides of the pivot, the arms being connectedtogether onthe side of the pivot opposite the shuttle engaging arm todefine a binder engaging arm, and screw means located between the limbson that side of the pivot opposite the binder engaging arm to vary thedistance between said limbs.

13. In a shuttle cheek for. a loom having a lay with a binder to engagea shuttle, means defining a pivot, a shuttle check formed of a strip ofinherently resilient material, a carrier movable angularly about thepivot and having substantially horizontal slots on opposite sidesthereof to receive the shuttle cheek, the latter having a shuttleengaging arm located on one side of the pivot and a binder engaging armon the.

other side of the pivot, and means to hold said cheek in fixed relationlwith respect to the carrier.

lll. In a shuttle check for a loom having VaV lay with a binder toengage a shuttle,

means defining a pivot, a shuttle check formed of a strip of inherentlyresilient material having a shuttle engaging arm on one side of thepivot, a pair of substantially parallel limbs extending on both sides ofthe pivot, those portions of the limbs extending on that side of thepivot opposite the shuttle engaging arm being connected together to forma binder engaging arm, a carrier angulai'ly movable about the pvot,means clelining a connection between the parallel limbs und the carrierto hold the check to the carrier in any one of .a plurality of positionsto vary the length of the binder engaging arm, and means interposedbetween the parallel limbs on that side of the pivot adjacent theshuttle engaging arm to vary the position of the latter with respect tothe binder engaging arm. l

In testimony whereof I have hereunto affixed my signature.

WILLIAM E. LUNDeRinI.l

